“IF it flys like a duck, walks like a duck and quacks like a duck, it must be a…” Personally, I enjoy likening this to the infamous children’s question, “What black and white and red/read all over?” So what’s para-duck-sicle about the first statement, and ‘riddled’ with double-entendre in the second, that both have in common? They’re both riddles. Or, some might say, they both are, in a broader sense, conundrums.

According to Dictionary.com, a riddle is “a question or s...